Improvement in heating-stoves



1. A..YuuNG.

Heating-Stoves.

No.-15l,l87. Parenwdmayrmmm,

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ATTEST: INVEMTOR:

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'UNITED STATES PATENT FEIOE.

JOHN A. YOUNG, or ooLLINsvILLE, ILLINOIS,

IMPROVEMENT IN HEATING-STOVES.

Specification forming part of Letters Patent No. 151,187, dated May 19,1874 application filed February 24, 1874.

To all whom it may concern:

Be it known that I, JOHN A. YOUNG, of Collinsville, in the county ofMadison and State of Illinois, have invented a certain Improved Heatingand 'Ventilating Stove, of which the following is a specification:

This invention consists in providing a double casing, forming twochambers, to surround an ordinary stove, the inner of these twoconcentric chambers being connected at bottom tothe outer air, which isdischarged in a heated condition into the room, through the perforatedtop of the casin g. The outer chain ber or space is open at bottom,where it takes the foul air of the room, and discharges it through apipe discharging into the stovepipe or smoke-nue of the building'.

Figure l is an axial scetionf Fig. 2 is a sectional plan at line xx.Fig. 3 is a plan of the lire-support.

A is the stove, having a luted outer plate, as shown clearly in Fig. 2,so as to expose a greater heating-surface to the air. B is thestove-pipe for carrying oii the products of combustion. O is the grate,formed with circularly-arranged vertical bars c, and which is providedwith an inturned flange, c', on which rests the horizontal part orbottom l), sup ported by lugs el and handle d', so that the grate D maybe tilted to discharge the ashes. rlhis tilting movement is permitted byproviding the'supporting-ilange c with a gap, c, through which one ofthe supporting-lugs may descend when the grate-bottom is turned to theproper position. Otherwise, when none of the lugs are in conjunctionwith the gap c, the grate-bottom cannot be tilted, but admits ofagitation by reciprocating oscillation in a horizontal pla-ne. E is afork, eonsistin g of a number of parallel tines, c, of sufficient lengthto reach through the grate, and which pass between the grate-bars c, andrests on the horizontal ring F, arranged on Vthe outside of thegrate-bars, the purpose of this arrangement being to support the livecoals during the cleaning of the grate by the'tilting of thegrate-bottom D. Gr H are cylindrical casings united to a ireafront, I,and forming two concentric heating-chambers, J K. The chamber J 'has anopen bottom, J', communicating, through an opening in the door, with theouter air. The air, passing up, comes in contact with the stove, isheated, and discharges into the room through the perforated top L. Thefoul air at the iioor of the room flows into the chamber K through theapertures hin the casing H, and passes up through said chamber into thepipe M, arranged preferably' side by side with the stove-pipe B, for thepurpose ot' keeping said pipe M in a heated condition. rlhe pipe M mayconnect with and discharge the foul air into the top of the pipe B, orinto the smoke-flue of the building, as desired. N is a door infire-front of the casings, communicating with the stove A by the chute lO is a door closing the opening to the gratespaoe O', and P is a doorclosing the opening of the ash-pit P'.

The operation of the apparatus is as follows: The air-supply to the tireis taken from near the iioor, and the products of combustion pass oithrough an ordinary chimney or stovepipe. The heated air supply for theroom is taken from the outside of the building, through a ductcommunicating with the bottom of the inner concentric chamber J, andbecomes heated by contact with the outer surface of the stove, whichsurface is much increased by its tluted construction. After heat ing,this air escapes into the room through the perforated or openworlicovers; and by its greater rarity expels the foul air from the upperpart of the room, which rthen descends,

and is, with -the lower stratum ot' cold air,

carried oftthrough the apertures h in the outer case H, passing throughthe chamber K and escape-flue M. The course of the air in the room isindicated by the arrows.

I claim as my invention- The combination of the stove A, perforated topL, inner chamber J, receiving' air from outside the apartment anddischarging it into the room, and outer chamber K, surrounding the innerchamber, and having perforations h at its bottom to receive foul airfrom the room and discharging into the chimney, all as herein set forth.

JOHN A. YOUNG.

